package nettypro.netty.dubborpc.netty;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import nettypro.netty.dubborpc.provider.HelloServiceImpl;

/**
 * @ClassName NettyServerHandler
 * @Description TODO
 * @Author zeny
 * @Date 2020/3/27 0027 22:53
 */
public class NettyServerHandler extends ChannelInboundHandlerAdapter {
    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        //获取客户端发送的消息，并调用服务
        System.out.println("msg = " + msg);
        //客户端在调用服务器的api时，我们需要定义一个协议
        String start = "service#impl#";
        if (msg.toString().startsWith(start)) {
            String result = new HelloServiceImpl().hello(msg.toString().substring(msg.toString().lastIndexOf("#") + 1));
            ctx.writeAndFlush(result);
        }
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        ctx.close();
    }
}
